How many ornaments are too many ornaments?

The one cave I have is huge length and width-wise. Given that my 55G tank is much taller than it is deep, I think my best choice would be to get more tall, narrow ornaments that utilize the space better.

I have black phantom tetras that are very nippy. I have a ton of plants in their tank. Adding more plants or ornaments will help reduce aggression. However, my fish are the same way. They school when I take everything out and clean the tank. They aren't used to everything taken out and a huge hand and siphon cleaning the tank.

looking great!!!!

OK, I let my OCD get the best of me!

I bought some African root wood and added it to my tank in a wholesale makeover. Here's a look at what I did with the wood (and a piece of slate I found in the back yard):



Here's three wider views showing the left and right sides as well as the whole tank:



Finally, I thought it was cool that my Betta showed an INSTANT interest in what I did. The first picture is difficult to make out - on the right-hand side of the wood, where I propped it up with the slate rock, there's a nice little tunnel that he loves. The black blob almost dead center is him. The second picture is him exiting the tunnel into the center of the structure:

It was painful getting there - I really stress over placement of stuff (OCD!). It often takes me 3-4 hours to do water changes because of it. I spent half the day yesterday trying to get everything right.

I'm really going to have to force myself to not worry about it when I vacuum the next time so as not to wreck everything...